> I agree (subreg:M (op:N A C) 0) to (op:M (subreg:N (A 0)) C) is > a good transformation, but why do we need to handle as special > the case where the subreg is itself the operand of a plus or minus? > I think it should happen regardless of where the subreg occurs.
Don't we need to restrict this to the low part though? -- Eric Botcazou
